应用改进欧拉算法解算磁性目标空间位置参数

指出目前磁性目标探测中常规欧拉方法存在的局限性,提出在欧拉窗口内视地磁场和其他目标干扰异常联合影响为线性变化,将构造指数作为动态变化参数代入欧拉方程一并求解,并利用多元线性回归方法解决了欧拉方程非线性问题。在质量控制方案中,根据构造指数和目标深度变化规律,给出离散欧拉解滤波措施;采用层次聚类分析方法对滤波后欧拉解进行分类。通过实测数据验证表明：给定相关阈值参数后,实现欧拉方法全自动反演,磁性目标空间位置参数具有很高解算精度,噪声对目标平面位置解算结果基本上没有影响,但对深度解算结果存在一定影响。...

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Bibliographic Details
Published in测绘学报 Vol. 40; no. 3; pp. 386 - 392
Main Author 卞光浪 翟国君 刘雁春 黄谟涛 欧阳永忠
Format Journal Article
LanguageChinese
Published 海洋测绘研究所,天津300061%海洋测绘研究所,天津,300061%大连舰艇学院海洋测绘科学与工程系,辽宁大连,116018 2011
大连舰艇学院海洋测绘科学与工程系,辽宁大连116018
Subjects
层次聚类分析
欧拉反褶积法
磁性目标探测
磁性目标空间位置
线性回归
磁性目标空间位置
欧拉反褶积法
层次聚类分析
磁性目标探测
线性回归
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Summary:指出目前磁性目标探测中常规欧拉方法存在的局限性,提出在欧拉窗口内视地磁场和其他目标干扰异常联合影响为线性变化,将构造指数作为动态变化参数代入欧拉方程一并求解,并利用多元线性回归方法解决了欧拉方程非线性问题。在质量控制方案中,根据构造指数和目标深度变化规律,给出离散欧拉解滤波措施;采用层次聚类分析方法对滤波后欧拉解进行分类。通过实测数据验证表明：给定相关阈值参数后,实现欧拉方法全自动反演,磁性目标空间位置参数具有很高解算精度,噪声对目标平面位置解算结果基本上没有影响,但对深度解算结果存在一定影响。
Bibliography:11-2089/P
magnetic object detection; magnetic source＇s depth and horizontal position; Euler deconvolution; linear regression; hierarchical clustering analysis
BIAN Guanglang1,2,ZHAI Guojun2,LIU Yanchun1,HUANG Motao2,OUYANG Yongzhong2 1.Department of Hydrography and Cartography,Dalian Naval Academy,Dalian 116018,China;2.Institute of Hydrographic Surveying and Charting,Tianjin 300061,China
Considering the deficiency of conventional Euler approach in magnetic detection at present,the combining influence of geomagnetism and adjacent bodies＇ anomaly was assumed as linear variation.The non-linear problem of Euler equation had been figured out utilizing multivariate linear regression with unprescribed structural index.In quality control scheme,filtering technique of Euler solutions was presented based on the relationship between structural index and object depth.Adopting hierarchical clustering method,the dispersed Euler solutions were isolated to different clusters.The effectiveness of the suggested techniques had bee
ISSN:1001-1595